Boiling Water Resistance Saturated Polyester Resins 93/7 For Powder Coating

Super Durable Polyester Resin NH5307 with Excellent Boiling Water Resistance for Architectural Profile

◇ Applications:

NH5307 is a saturated carboxyl 93/7 polyester resin for polyester/TGIC powder coating system.

◇ Basic features:

Excellent anti-yellowing, boiling water resistance

Good mechanical properties

Good storage stability

Outstanding weathering resistance

◇ Specifications:

Appearance white or light yellow transparent granule

Color (50%DMF): max: 2

Acid number(mgKOH/g): 30～36

Softening point(℃): 101～115

Glass transition temp.(℃): ～65

Melting viscosity(200℃, cone/plate, mPa·s): 5000±1500

Reactivity at 180℃(s, 7% TGIC): 180±60

◇ Recommend Formulation: NH5307—TGIC

◇ Extrusion Condition:

Two-screw extruder

Zone I: 90～110℃ Zone II: 110～120℃

Speed of revolution: 500～1200rpm

Fineness of powder: ＜100μm

◇ Application Condition:

Electrostatic spraying with: 40～70KV

Film thickness: 50～100μm

Degreased cold-rolled steel 0.5mm

◇ Curing Requirement: 200℃×15min

◇ Film Properties:

Gel time(180℃,sec) 240~380

Horizontal flow(180℃,mm): 23~28

Gloss(60°): ≥85%

Bending(φ1mm): pass

Adhesive(1mm,grade): 0

Pencil hardness: ≥1H

Impact (50cm): pass

◇ Packaging:PE bags, N.W. 25KG±0.1KG / bag

◇  Remarks:

All the polyester resins could be customizes to Non-tin (A) ,anti gas burners(G),tribo gun(T) and anti-blooming(F)

The consistency and stability of products are guaranteed through rigorous quality inspection.